Arterial Inversion + Ventricular Inversion

·        aka     “Congenitally Corrected” Transposition

      http://www.childrenheartinstitute.org/educate/defects/transpo1.htm

                                    Normal                                                                                                Transposed Arteries and Ventricles

Result: Arteries are switched, but so are ventricles, so deoxygenated blood ends up going to the

lungs and oxygenated blood to the body; two wrongs can make a right.

Associated Defects 

• high incidence of arrythmias and conduction defects
• coronary arteries are reversed so as to supply their appropriate ventricle
• ventricular septal defects (now unadvantageous) occur in 80% of cases
• tricuspid valve abnormalities occur in 90% of cases; ventricle that pumps blood to body must have very high pressure, which the tricuspid valve is not used to.